/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef FRUIT_NORMALIZED_COMPONENT_STORAGE_HOLDER_H
#define FRUIT_NORMALIZED_COMPONENT_STORAGE_HOLDER_H

#include <memory>
#include <fruit/impl/fruit_internal_forward_decls.h>
#include <fruit/fruit_forward_decls.h>

namespace fruit {
namespace impl {

/**
 * A wrapper around NormalizedComponentStorage, holding the NormalizedComponentStorage
 * through a unique_ptr so that we don't need to include NormalizedComponentStorage in
 * fruit.h.
 */
class NormalizedComponentStorageHolder {
private:
  std::unique_ptr<NormalizedComponentStorage> storage;
  
  friend class InjectorStorage;
  
  template <typename... P>
  friend class fruit::Injector;
  
public:
  NormalizedComponentStorageHolder() = delete;
  
  NormalizedComponentStorageHolder(const ComponentStorage& component, const std::vector<TypeId>& exposed_types);

  NormalizedComponentStorageHolder(NormalizedComponentStorage&&) = delete;
  NormalizedComponentStorageHolder(const NormalizedComponentStorage&) = delete;
  
  NormalizedComponentStorageHolder& operator=(NormalizedComponentStorageHolder&&) = default;
  NormalizedComponentStorageHolder& operator=(const NormalizedComponentStorageHolder&) = default;
  
  // We don't use the default destructor because that would require the inclusion of
  // normalized_component_storage.h. We define this in the cpp file instead.
  ~NormalizedComponentStorageHolder();
};

} // namespace impl
} // namespace fruit

#endif // FRUIT_NORMALIZED_COMPONENT_STORAGE_HOLDER_H
